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    • 3. 发明申请
    • DEVICE FOR RENOVATING DAMAGED LINE WALLS, COMPRISING A MIXING DEVICE FOR MIXING THE RENOVATION COMPOUND AT THE WORK SITE
    • US20210148502A1
    • 2021-05-20
    • US16611915
    • 2018-05-09
    • PIPETRONICS GMBH & CO. KG
    • Christian Noll
    • F16L55/179E03F3/06F16L55/163
    • The present invention relates to an apparatus for rehabilitating damaged pipe walls in the region of the connection of a secondary pipe to a main pipe, comprising a mobile carrier element, wherein a covering element and an expandable expansion body are arranged on the carrier element, and wherein the expandable expansion body when not expanded is positioned or is positionable at least in sections in a or by means of a first recess in the covering element in the secondary pipe and, when expanded, lies against the wall of the secondary pipe such that the covering element and the expansion body together form a shuttering, and wherein the covering element has a second recess through which a viscous, curable rehabilitation compound can be introduced by means of a transport means from a storage device into the space between the shuttering and the walls of the main and secondary pipes adjacent to the shuttering, wherein the rehabilitation compound comprises two components in the form of a resin and a hardening agent or consists thereof and cures by means of polyaddition, polycondensation and/or polymerization, wherein resin and hardening agent are stored separately in the storage device, and wherein a mixing nozzle is included which is arranged upstream and/or downstream of the transport means, wherein the mixing nozzle is designed and configured in order to mix resin and hardening agent in a predetermined mixing ratio after removal from the storage device and before introduction into the space between the shuttering and the walls of the main and secondary pipes adjacent to the shuttering.